1H-Pyrazol-5-amine, 3-ethyl-4-methyl-1-(1-methylethyl)- 21018-60-0 5-25-09-00542 (Beilstein Handbook Reference) 5-Amino-3-ethyl-1-isopropyl-4-methylpyrazole BRN 0511149 Pyrazole, 5-amino-3-ethyl-1-isopropyl-4-methyl-